CN108615148B - A kind of preposition method of commerce of secured assets and system based on block chain technology - Google Patents
A kind of preposition method of commerce of secured assets and system based on block chain technology Download PDFInfo
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- CN108615148B CN108615148B CN201810253124.9A CN201810253124A CN108615148B CN 108615148 B CN108615148 B CN 108615148B CN 201810253124 A CN201810253124 A CN 201810253124A CN 108615148 B CN108615148 B CN 108615148B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q20/00—Payment architectures, schemes or protocols
- G06Q20/38—Payment protocols; Details thereof
- G06Q20/389—Keeping log of transactions for guaranteeing non-repudiation of a transaction
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
Abstract
The invention discloses a kind of preposition method of commerce of secured assets and system based on block chain technology, include the following steps: that server receives request firstly, user issues registration request in information system, and after being handled, registered in internal database by bottom data structure；Secondly user is deposited card information by Web API and submits to block chain server by server, and block chain server records registration request deposit TxPool block in pool database, and the cryptographic Hash of this block transaction record is returned to caller；TxPool block can be recorded the block transaction record in pond after certification, encryption and packing in formal typing block in database by every mistake 10 minutes, independent block chain processing routine；When user needs to inquire registered mortgage, front-end server can be inquired by Web API；It further include transaction system；Easy to operate quick, securely and reliably, privacy of user data is good, and whole system has preferable scalability, can improve according to demand.
Description
Technical field
The present invention relates to block chain technical field, specially a kind of preposition counterparty of secured assets based on block chain technology
Method and system.
Background technique
Block chain is the distributed account book database an of decentralization.The bottom core of block chain is a string using password
Associated generated data block is learned, contains the letter that multiple digital encryption network trading effectively confirms in each data block
Breath.By the setting of complicated public key and private key, block chain network is real by the account book of All Activity in whole network
When broadcast, transaction record is distributed in each client in real time.Whenever thering is encryption transaction to generate, there is powerful fortune in network
The block chain safeguard service device of calculation ability will be traded using algorithm decryption verification creates new block to record newest friendship
Easily.New block is linearly added original block chain end sequentially in time, this account book will ceaselessly increase
And extension.
Compared with traditional centralized network architecture, block chain technology has following unique advantage:
1, distributed decentralization: each node and chain safeguard service device must comply with same account dealing in block chain
Rule, and this rule is to be based on cryptographic algorithm rather than credit, while every transaction needs the approval of other users in network,
So not needing a set of third party's intermediary agent structure or trust authority endorsement.In traditional centralized network, to a centromere
Point (such as payment intermediary third party), which carries out effectively attack, can destroy entire platform, and in decentralization, such as
It says in block chain network, attacks an independent node and be unable to control or destroy whole network, grasp in net 50% node
Only obtain the beginning of control.
2, without trusted platform module architecture: in block chain network, by the selfdiscipline of algorithm, the behavior of any malice deception platform
Will be by the repulsion and inhibition of other nodes, therefore, block platform chain does not depend on central authority support and credit endorsement.
In traditional credit endorsement network platform, participant needs to trust central office enough, increases with network number is participated in,
The safety of platform declines.With conventional situation on the contrary, in block chain network, participant does not need to trust anyone, but with
It participates in node to increase, the safety of platform increases instead, while data content can accomplish full disclosure.
3, can not distort and cryptographic security: block chain takes one-way hash function algorithm, while each newly generated block is tight
Lattice are promoted according to time linear sequence, and the irreversibility of time leads to any row for attempting invasion and distorting data information in block chain
To be all easy to be traced, cause by the repulsion of other nodes, so as to limit related malfeasance.
With internet anyone all can be read, anyone can participate in the public of decentralization wherein trade, complete
Block chain is different, and privately owned chain refers to write-in permission only in an enterprise or the block chain of organization internal.Read permission or external
It is open, or limited.Because the node in intranet all has very high degree of belief, do not need each
Node is complicated with POW (ProofOfWork) etc. and wastes the calculation method of electric power and authenticates the generation of new block.Such knot
Fruit is exactly the block chain maintenance of ultrafast transactions velocity and low cost.But meanwhile privately owned chain applies as public block chain
Block encryption and hash algorithm, equally can guarantee the integrality of data.The encryption that privately owned chain remains block chain itself can
By property, and prevent without limitation open network to risk brought by the public.
Currently, the relatively common scheme for realizing transaction business process using block chain technology is with not in financial field
More transactions are integrated into after an affairs with mode and issue a block chain network operation together again, if transaction by sending out in many ways
It rises, then each node just needs the transaction of oneself to be broadcast to other nodes get on to guarantee to include certainly in transaction packet
Oneself transaction.However, if because why individual transaction cannot be pre- caused by reason (such as network speed or stability reasons)
Most nodes are broadcast in the fixed time, then the transaction is just probably because technical reason fails.At the same time, in order to
For reserved transaction broadcast time to the node on block chain, the formation speed of single transaction journal can be straight by sub- millisecond or millisecond rank
It connects and drops to a second rank (thousand times of losses).It is raw for the finance all having high requirements to issued transaction stability and issued transaction efficiency
These problems must all solve for state system.
Summary of the invention
In order to overcome the shortcomings of prior art, it is preposition that the present invention provides a kind of secured assets based on block chain technology
Method of commerce and system can effectively solve the problem of background technique proposes.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of preposition method of commerce of secured assets based on block chain technology, includes the following steps:
Step 100, user issue registration request in information system, and server receives request, and after being handled, in inside
It is registered in database by bottom data structure；
User is deposited card information by Web API and submits to block chain server, block chain service by step 200, server
Device records registration request deposit TxPool block in pool database, and the cryptographic Hash of this block transaction record is returned to tune
User；
Step 300, every mistake 10 minutes, the block that independent block chain processing routine can record TxPool block in pond are handed over
Easy record is after certification, encryption and packing in formal typing block in database；
In step 400, when user needs to inquire registered mortgage, front-end server can be looked by WebAPI
It askes.
As a preferred technical solution of the present invention, the bottom data structure in the information system passes through tracking and note
Family mortgage registration, transaction and authorization message are employed to be registered, and the bottom data structure is interior coin.
As a preferred technical solution of the present invention, in step 100, the information system further includes interior coin wallet,
Preserved in the interior coin wallet one group for encryption public key and private key, and also remain with an interior coin address, work as information
When system server receives new registration, interior coin wallet and corresponding public key, private key can be created for each new user
And interior coin address, user information system certification log in after, server can by user name parse user interior coin address,
Public key and private key carry out the read-write and certification of block chain.
As a preferred technical solution of the present invention, in step 300, the block chain includes several blocks, and
And each block has link, includes one or more block transaction records in each block, each block passes through
Merkel tree algorithm generates the cryptographic Hash of each block, also passes through the block parallel with linking between block and trades
Record link.
As a preferred technical solution of the present invention, all user registration data are being stored in local by front-end server
After database, one of data subset can be registered in block chain by Web API, the data subset include user and
The cryptographic Hash of mortgage registration information and the upper transmitting file of user, further includes unique knowledge that front-end server generates in the database
Alias, including user number and mortgage number.
In addition, the present invention also provides a kind of preposition transaction system of secured assets based on block chain technology, including information
System, server, Registration Module and enquiry module, user issue registration request, the clothes to information system by Registration Module
It after summation process is asked in business device receiving, and is registered by the bottom data construction module of internal database, the server is logical
Cross Web API module by user deposit card information be transmitted to block chain server, registration request is stored in by the block chain server
TxPool block records in pool database, and the cryptographic Hash that block transaction executes record is returned to Registration Module, described
TxPool block record pool database by block chain processing module by block transaction record the typing block after authentication module
In in database, the enquiry module is inquired using front-end server by Web API module.
As a preferred technical solution of the present invention, the bottom data structure is specially interior coin.
As a preferred technical solution of the present invention, the information system further includes interior coin wallet, the interior coin wallet
Inside preserve one group for encryption public key and private key, and also remain with an interior coin address.
As a preferred technical solution of the present invention, the block chain includes several blocks, and each block it
Between be equipped with link, include one or more block transaction records in each block, each block passes through Merkel
Tree algorithm generates the cryptographic Hash of each block, and the block transaction record chain parallel with linking is additionally provided between block
It connects.
As a preferred technical solution of the present invention, all user registration data are being stored in local by front-end server
After database, one of data subset can be registered in block chain by Web API, the data subset include user and
The cryptographic Hash of mortgage registration information and the upper transmitting file of user, further includes unique knowledge that front-end server generates in the database
Alias, including user number and mortgage number.
Compared with prior art, the beneficial effects of the present invention are: the present invention is by building registration block catenary system, to realize
User's assets disposal contract, disposition state, material quickly, is reliably registered and inquiry, and privacy of user data is good, entirely
System has preferable scalability, can improve according to demand.
Detailed description of the invention
Fig. 1 is flowage structure schematic diagram of the invention；
Fig. 2 is the concept structure schematic diagram of block chain of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of preposition method of commerce of secured assets based on block chain technology, including such as
Lower step:
Step 100, user issue registration request in information system, and server receives request, and after being handled, in inside
It is registered in database by bottom data structure.
Bottom data structure in the information system is by tracking and recording user's mortgage registration, transaction and authorization letter
Breath is to be registered, and the bottom data structure is interior coin.
As other block catenary systems, there is also the system of coin in the present embodiment, i.e., above-mentioned interior coin, but and its
Unlike its block chain, interior coin is one of block chain bottom data structure, it is supported for tracking and recording user
The information such as registration, transaction and authorization are given as security, the registration of user information can be directly superimposed on each coin, and reach use
Coin tracks the purposes of all user registration information, and since coin is can not arbitrarily to distort, with encrypted url so equally
It can guarantee the complete and fairness of user registration information.
Among the above, when one new mortgage of user registration, a new block transaction will be generated, while one
A newly generated interior coin can be transferred in the wallet (following) of user.In the record of this transaction, mortgage can be added in block chain
The additional information of registration.
The information system further includes interior coin wallet, preserved in the interior coin wallet one group for encryption public key and private
Key, and an interior coin address is also remained with, it can be each new user when information system server receives new registration
Coin wallet and corresponding public key, private key and interior coin address in creating, user is after information system certification logs in, clothes
Business device can parse interior coin address, public key and the private key of user by user name to carry out the read-write and certification of block chain.
User is deposited card information by Web API and submits to block chain server, block chain service by step 200, server
Device records registration request deposit TxPool block in pool database, and the cryptographic Hash of this block transaction record is returned to tune
User.
Step 300, every mistake 10 minutes, the block that independent block chain processing routine can record TxPool block in pond are handed over
Easy record is after certification, encryption and packing in formal typing block in database.
Based on above content, every mistake ten minutes, the pending transaction record of institute, which will be encrypted be packaged, is permanently written area
In block chain, because each mortgage and interior coin are one-to-one corresponding relationships, the mortgage that each interior coin represents is also different, in this way
It can support the transaction mortgaged between user.Assuming that the mortgage A of user's first will transfer user's second, in the operation of block chain,
Exactly by corresponded with mortgage A that in coin be given to user's second from the wallet of user's first, and trade and remember in block chain
The time and corresponding information that mortgage is transferred the possession of are added in record.
And in the present embodiment, different " interior coin " can represent and map different business implications, for example, for
The same mortgage, the ownership of mortgage and authorization have entirely different meaning, so that it may with two different types of " interior coin "
To track and record.The data structure of " interior coin " exists only in server and block chain processing routine, front-end server and use
Family is without understanding or directly contacting " interior coin " this concept.
In step 300, as shown in Fig. 2, the block chain includes several blocks, and each block has link,
Wherein, (in addition to Genesis block does not have preceding chain, newest block is without after for the link before and after each block (Block) has
Chain), include one or more block transaction records in each block, each block by Merkel tree algorithm come
Generate the cryptographic Hash of each block, system ensure that block data can not tamper, between block also by with link phase
Parallel block transaction record link.These links represent transaction and the change historical record of each coin, possess N at one
In the block chain of quantity coin, N transaction record chain there is.Each mortgage is mapped to a coin, so each mortgage exists
There is oneself transaction record chain in block chain, when each block transaction record generates, server, which needs to utilize, works as
The public and private key of preceding user and previous item record user carry out encryption certification, it can be ensured that the safety and integrality of transaction.
Meanwhile unique cryptographic Hash of transaction record also ensures can not distorting for data.
In step 400, when user needs to inquire registered mortgage, front-end server can be looked by WebAPI
It askes.
On the basis of based on above-mentioned, one embodiment of the running environment of this system is as described below.Operating system uses
Linux (CentOS 7.0), database use Mongodb, and wherein Database Systems use UTF8 character set, and use GIT
As code management tools.Configuration for system hardware, shown in table specific as follows:
Among the above, it is also necessary to explanation: HTTP server builds nginx load balancing to access web services (three
A node)；Server, three servers install tomcat7. version and mongodb3.2 version respectively；Database server closes
System, duplication collection duplication, role includes primary and secondary (data are synchronous, mutual calamity is standby), in addition, removing non-specifically sound
It is bright, encoded using UTF-8.
It should be added that the prefix of each API is default are as follows: http: // DOMAIN/, wherein DOMAIN should be replaced
It is changed to actual domain name address (such as weibei.rongdantong.com), when using defined API, need to be mended before API
This neat prefix.
The input parameter of API includes system-level parameters and application layer parameter.System-level parameters: it is consistent for each API,
For encrypting, the purposes such as identity user identity, API protocol version.Application layer parameter: for the different purposes of API, application layer ginseng
Number is different, referring particularly to API document.
| Title | It is whether essential | Meaning | Type | Value example and explanation |
| vendorkey | It is | For the key of vendor distribution | String | XXXXXX |
| sign | It is | API inputs parameters signatures result | String | XXXXXXX |
It when with API, needs all parameter names and parameter value signature is added, it may be assumed that system-level parameters (remove sign)
Signature is all added in title, system-level parameters value, application layer parameter name, application layer parameter value.
I. signature algorithm
By the obtained key (vendorsecret) of distribution and meanwhile be spliced to parameter head of string, tail portion carry out md5 add
It is close, it is then converted into capitalization, format is:
md5(vendorsecretkey1value1key2value2...vendorsecret)。
II. Base64 coding/decoding is carried out to all parameters.
As preferred embodiment, block chain is not the simple copy for being front-end server database.Front-end server
After all user registration data are stored in local data base, one of data subset can be stepped on by Web API
Remember in block chain.This data subset also includes front-end server number other than most important user and mortgage registration information
According to some unique identifiers, such as user number generated in library, mortgage number etc..In addition, this data subset can also include user
The cryptographic Hash of upper transmitting file, rather than file itself can prevent the storage of block chain excessively huge in this way and cause system response speed
The decline of degree.
In addition, in the present invention, it is also necessary to further explanation: block chain will provide the interface of six Web API,
I.e. registration of contracts is registered and is inquired, melts the logical object registration of load and inquire, melt and carry on a shoulder pole logical state registration and inquiry, and wherein interface is all made of
HTTP.Web API will use general HTTP JSON format.Server will provide preset systematic account for front-end server
Name and password, the encryption layer as system communication.Network firewall be set as forbidding outer net and except front-end server IP address with
Outer any system accesses server ip address, to reinforce safety, request method POST.
Based on above-mentioned, will be illustrated below with specific example:
1, mortgage contract information
| Description | Registration of contracts interface |
| URI | weibei/newContract |
| Requesting method | POST |
The parameter of setting specifically:
The format of return value are as follows:
Return value pattern and example (JSON format):
2, mortgage contract is inquired
| Description | Mortgage registration interface |
| URI | weibei/getContract |
| Requesting method | POST |
Server can receive the major parameter inquired, and there are three types of modes:
It is inquired by agent_user_id, server will return to all history mortgage registrations of designated user and record.
It is inquired by tx_id (block transaction record number), server will return to specified block chain registration record.
By sys_contract_no (System Number that front-end server generates) inquiry, server will return to specified area
Block chain registration record.
By contract_hash (the contract documents hash value that front-end server generates) inquiry, server will return specified
Block chain registration record.
The parameter of setting specifically:
| Title | It is whether essential | Meaning | Type | Value example and explanation |
| agent_id | M | Producer | String | beijiaosuo |
| agent_user_id | O | The unique ID of user | String | Internal user ID |
| sys_contract_no | O | Contract system number | String | |
| tx_id | O | Block transaction record number | String | |
| contract_hash | O | Sample hash | String[] |
Front-end server must select at least one in four query terms.If front-end server is provided more than one
Query Value, all querying conditions can all be used.
Return value format:
Return value pattern and example (JSON format):
3, guaranty information
| Description | Guaranty enrollment interface |
| URI | weibei/newInventory |
| Requesting method | POST |
The parameter of setting are as follows:
Return value format:
Return value pattern and example (JSON format):
4, guaranty is inquired
| Description | Guaranty query interface |
| URI | weibei/getInventory |
| Requesting method | POST |
Server can receive the major parameter inquired, and there are three types of modes:
It is inquired by agent_user_id.Server will return to all history mortgage registrations of designated user and record.
It is inquired by tx_id (block transaction record number).Server will return to specified block chain registration record.
It is inquired by inventory_id (guaranty ID).Server will return to specified block chain registration record.
By Inventory_hash (the guaranty file hash value that front-end server generates) inquiry.Server refers to return
Fixed block chain registration record.
The parameter of setting are as follows:
Front-end server must select at least one in four query terms.If front-end server is provided more than one
Query Value, all querying conditions can all be used.
Return value format:
Return value pattern and example (JSON format):
In the above-described example, universal field such as error code is described as follows:
In conclusion operational safety of the invention is used by network login authentication, database login verifying, application system
Verify three-level composition.Network login authentication is completed by operating system, for the verifying with network resource accession permission IP；Number
It is completed according to library login authentication by database server, for the verifying with database-access rights user；System use is tested
Card is completed by application system, for the verifying with application system access right user；Application system will be using three kinds of verifyings
The mode that mode combines verifies user.
For the safety for guaranteeing data transmission, so that transmitted data are not stolen, change, application system is collected heavy
Want initial data that the method that data base encryption transmission or application system data encryption combine can be used；Significant data is because of certain original
When because long term backup storage need to be carried out with storage medium, Encryption Algorithm can be used, data are encrypted, so that illegal user is not
It can understand its meaning, be restored again when legitimate user's access.
With log, the access operation of the api interface of the offer of system is recorded, can be carried out according to log subsequent
Analysis, to find the occurrence cause of accident, owner or illegal user.
Data need to be consistent in entire distributed data base system, and following several measures will be taken to guarantee these numbers
According to consistency:
Automatic failover and automatic recovery may be implemented in replica set；
Replica set is made of the node of two or more, realizes mutual duplication；
Replica set automatically selects primary node, none node is fixed primary；
Mongos can have found that the primary node of a replica set changes automatically, and write operation is sent to
This new primary node.
In addition, being divided using the module that high cohesion, lower coupling principle carry out height, intermodule provides corresponding interface, when
When the business of application system or functional requirement change, Function Extension can be realized by the modification to corresponding module.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (10)
1. a kind of preposition method of commerce of secured assets based on block chain technology, which comprises the steps of:
Step 100, user issue registration request in information system, and server receives request, and after being handled, in internal data
It is registered in library by bottom data structure；
User is deposited card information by WebAPI and submits to block chain server by step 200, server, and block chain server will be stepped on
In note request deposit TxPool block record pool database, and the cryptographic Hash of this block transaction record is returned into caller；
Step 300, every mistake 10 minutes, the block that TxPool block can be recorded in pond by independent block chain processing routine, which is traded, to be remembered
Record is after certification, encryption and packing in formal typing block in database；
In step 400, when user needs to inquire registered mortgage, front-end server can be inquired by Web API.
2. a kind of preposition method of commerce of secured assets based on block chain technology according to claim 1, which is characterized in that
Bottom data structure in the information system is carried out by tracking and recording user's mortgage registration, transaction and authorization message
Registration, and the bottom data structure is interior coin.
3. a kind of preposition method of commerce of secured assets based on block chain technology according to claim 1, it is characterised in that:
In step 100, the information system further includes interior coin wallet, preserved in the interior coin wallet one group for encryption public key
And private key, and an interior coin address is also remained with, it, can be new for each when information system server receives new registration
User create in coin wallet and corresponding public key, private key and interior coin address, user information system authenticate log in
Afterwards, server can parse interior coin address, public key and the private key of user by user name to carry out the read-write and certification of block chain.
4. a kind of preposition method of commerce of secured assets based on block chain technology according to claim 1, it is characterised in that:
In step 300, the block chain includes several blocks, and each block has link, includes in each block
One or more block transaction records, each block generate the cryptographic Hash of each block by Merkel tree algorithm,
It is also linked by the block transaction record parallel with linking between block.
5. a kind of preposition method of commerce of secured assets based on block chain technology according to claim 1, it is characterised in that:
Front-end server can pass through one of data subset after all user registration data are stored in local data base
Web API is registered in block chain, which includes the Hash of user and mortgage registration information and the upper transmitting file of user
Value further includes the unique identifier that front-end server generates in the database, including user number and mortgage number.
6. a kind of preposition transaction system of secured assets based on block chain technology, which is characterized in that including information system, service
Device, Registration Module and enquiry module, user issue registration request to information system by Registration Module, and the server receiving is asked
It after summation process, and is registered by the bottom data construction module of internal database, the server passes through Web API mould
User is deposited card information and is transmitted to block chain server by block, and the block chain server remembers registration request deposit TxPool block
It records in pool database, and the cryptographic Hash that block transaction executes record is returned into Registration Module, the TxPool block records pond
Database by block chain processing module by block transaction record after authentication module in typing block in database, it is described to look into
Module is ask to be inquired using front-end server by Web API module.
7. a kind of preposition transaction system of secured assets based on block chain technology according to claim 6, it is characterised in that:
The bottom data structure is specially interior coin.
8. a kind of preposition transaction system of secured assets based on block chain technology according to claim 6, it is characterised in that:
The information system further includes interior coin wallet, preserved in the interior coin wallet one group for encryption public key and private key, and
Also remain with an interior coin address.
9. a kind of preposition transaction system of secured assets based on block chain technology according to claim 6, it is characterised in that:
The block chain includes several blocks, and link is equipped between each block, include in each block one or
Multiple block transaction records, each block generate the cryptographic Hash of each block by Merkel tree algorithm, block it
Between be additionally provided with the block transaction record parallel with linking and link.
10. a kind of preposition transaction system of secured assets based on block chain technology according to claim 6, feature exist
In: front-end server can lead to one of data subset after all user registration data are stored in local data base
It crosses Web API to be registered in block chain, which includes the Kazakhstan of user and mortgage registration information and the upper transmitting file of user
Uncommon value further includes the unique identifier that front-end server generates in the database, including user number and mortgage number.
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| CN109377226A (en) * | 2018-10-30 | 2019-02-22 | 深圳市元征科技股份有限公司 | A kind of Transaction Information management method and relevant device |
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